Steam leak exposes achievements for Persona 6, Kingdom Hearts 4 and unannounced games

Neutral summary

A massive Steam leak has made public achievement lists for dozens of unreleased games, including Persona 6, Kingdom Hearts 4, Fable and previously unannounced titles. The data was indexed by Exophase, a site that tracks achievements across multiple platforms. Exophase owner Mike Bendel wrote on ResetEra that it “seems like a possible screw-up on Valve's end,” as achievements that should have been private were accessible through the API. The leak also covers games such as Ace Combat 8, Squadron 42, Metro 2039 and Judas, and may reveal details about cancelled projects.

How it was framed

Outlets: 13. Countries: 5. Facts in the shared core: 5.

Publication timeline

1. 2026-09-09 02:42 · Игромания (outlet profile)

   Достижения Persona 6, Judas, ремейка Tomb Raider и различных загадочных игр попали в сеть. На сайте Exophase появились списки достижений многих ещё не вышедших игр (Steam-версий).

2. 2026-09-09 04:09 · PC Gamer (outlet profile)

   Steam may have leaked achievements for countless forthcoming PC games via a third party site, including Persona 6, Ace Combat 8, and even some unannounced games. Also hinted are a new Thief Dark Project campaign, and a…

3. 2026-09-09 05:08 · DTF (outlet profile)

   Утечка в Steam: достижения невышедших игр, включая Persona 6, Squadron 42, Metro 2039 и Fable. В список попали в том числе неанонсированные тайтлы.

4. 2026-09-09 06:20 · 3DNews (outlet profile)

   По вине Valve в открытый доступ попали достижения десятков будущих игр Steam, в том числе неанонсированных. На портале Exophase, каталогизирующем достижения игр, без предупреждения появились списки трофеев десятков гото…

5. 2026-09-09 07:36 · Gamekult (outlet profile)

   Une nouvelle fuite massive de la base de données de Steam révèle divers jeux non annoncés et les trophées de dizaines d'autres. Des données de succès Steam supposées rester confidentielles pour des dizaines de jeux se s…

6. 2026-09-09 08:59 · VGC (outlet profile)

   Huge Steam leak shows achievement lists for hundreds of upcoming games, including Kingdom Hearts 4 and Persona 6. The leak could also include previously unannounced and cancelled games

7. 2026-09-09 09:48 · IGN (outlet profile)

   Apparent Steam Leak Reveals Persona 6 and Kingdom Hearts 4 Achievements, Unannounced Games. Achievements for various upcoming games have been made public as part of a significant Steam leak.

8. 2026-09-09 10:34 · Eurogamer (outlet profile)

   Persona 6, Kingdom Hearts 4 spoilers may have emerged online amid massive achievements leak for unreleased games. A massive information leak appears to have pushed full achievement lists for upcoming and unannounced PC…

9. 2026-09-09 11:01 · GameSpot (outlet profile)

   Major Steam Leak Reveals Achievements For Persona 6, Kingdom Hearts 4, And Unannounced Games. A massive Steam leak has revealed hundreds of achievements for upcoming games, including highly anticipated titles like Kingd…

10. 2026-09-09 12:26 · Frandroid (outlet profile)

    Une fuite massive de succès Steam dévoile les détails de Persona 6 et Kingdom Hearts 4. Une fuite massive de succès Steam a dévoilé cette semaine les détails de dizaines de jeux pas encore sortis, dont Persona 6 et King…

11. 2026-09-09 12:34 · StopGame (outlet profile)

    Появились ачивки Persona 6, Kingdom Hearts IV и ряда неанонсированных игр из-за утечки в Steam. У Valve серьёзные проблемы: в Сети оказались достижения из кучи невыпущенных игр по типу Kingdom Hearts IV, Fable и Strange…

12. 2026-09-09 12:38 · Flow Games (outlet profile)

    Steam deixa vazar listas de conquistas de jogos não lançados. A Steam sofreu um novo vazamento e deixou exposto listas de conquistas de jogos que ainda não foram sequer lançados ou anunciados

13. 2026-09-09 13:35 · TechRadar (outlet profile)

    Steam achievements for multiple upcoming and unannounced games have leaked — and it's an ugly situation for Valve. Valve may have accidentally leaked Steam achievements for both upcoming and unannounced games, and gamer…

Factual core

• The leak included achievements from unannounced titles.
• A massive leak of the Steam database exposed unannounced games and achievement data for dozens of titles.
• A significant Steam leak revealed achievements for Persona 6 and Kingdom Hearts 4.
• The achievement lists were uploaded to the website Exophase, which tracks achievements for Steam and Epic Games Store.
• The Steam leak included details about Kingdom Hearts 4.